Cylinder for washing-machines.



D. M. COOPER.

Patented May 12, 1914.

2 SHEETS-SHEET 1.

D. M. COOPER.

CYLINDER FOR WASHING MACHINES.

APPLICATION FILED PEBJI, 1910.

2 SHEETS-SHEET 2.

gunmen Patented May 12, 19M

Swumvboz wi/bnaooao UN run STATES PATENT OFFICE.

DANIEL M. COOPER, OF ROCHESTER, NEW YORK, ASSIGNOR TO AMERICAN LAUNDRY MACHINERY COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

CYLINDER FOR WASHINGh-MACHIN ES.

Specification of Letters Patent.

Patented May 12, 1914.

Application filed February 21, 1910. Serial No. 545,065.

new and useful Impro ements in Cylinders for Washing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

The present invention relates to cylinders for washing machines and it has for its object to provide an improved means for connecting the gudgcon to the cylinder head in such a manner that all twisting strains are removed from the bolts which secure the gudgeon to the cylinder.

Another object of the invention is to provide for constructing the cylinder heads in such a manner that it is possible to draw the hoops tightly about the cylinder when building the latter so that it is not necessary to make any allowance for the swelling of the timber of which the heads are formed.

To these and other ends the invention consists of certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claim at the end of the specification.

In the drawings: Figure 1 is an axial section through a cylinder constructed in accordance with the present improvements; Fig. 2 is a section on the line a--a of Fig. 1; Fig. 3 is an end view of the embodiment shown in Fig. 1; Fig. 4 is a section on the line b?) of Fig. 2, showing the seam between two sections of the head; and Fig. 5 is a similar section of another form of the joint.

In the embodiment of the invention herein illustrated, the cylinder or drum comprises a pair of heads A surrounded by stares 3 and notched at the peripheries to receive rib members 2 which connect them and extend longitudinally of the cylinder. The staves in this instance are perforated at 4. in order to permit, as usual, the circulation of water through the cylinder and preferably they are grooved or notched at 5 to fit the peripheries of the heads A, being held in engagement with said heads by bands 6. The cylinder may be divided into two or more compartments by a partition head B,

the staves 3 being grooved at 5 to receive the periphery of the head B, and the band 6 be ng passed about the cylinder in proxinnty to said head. Each compartment may have an opening through which access thereto 18 gained, said opening being closed by a door or other closure 7 pivoted if desirable, at 8 and secured in a closed position by any suitable means.

Connected to the heads A are gudgcons each of which in this instance comprises a spindle portion 80 projecting centrally from the flange or plate portion 9, which cooperates with the outer face of a head A. This plate or flange portion 9 is preferably integral with the spindle portion 80 and is provided with radial ribs 10 on its outer face to strengthen the same. On its inner face it is also provided with radial ribs or projections 11, integral therewith and fitting in radial grooves or recesses 12 in the head. The ribs or projections 11 are provided for the purpose of removing strains from bolts 13, which in this instance connect the plate portion of the gudgeon to the head of the cylinder, this having particular advantage when the cylinder rotating mechanism is connected directly to the gudgeons.

Ordinarily the heads A and partitioning heads B of washing machines are formed of timber or wooden boards running parallel across the drum. As the boards swell when the cylinder is put in use, it has heretofore been necessary to space them apart a certain distance and. to leave the stave bands loose. Of course, different timbers swell to different degrees, and it has, therefore, been impossible to gage the proper looseness of the bands and the proper separation between the head boards. Consequently oftentimes a cylinder becomes badly racked before the loose joints have been taken up, and in some instances has to be entirely reconstructed.

The above disadvantages are overcome by forming the heads A and partitioning head B of sections connected by scams or joints extending radially to the axis of rotation of the cylinder, this preferably being accomplished by the provision of cuneal or sector shaped sections 14. making seams with each other in radial lines and preferably having the grain of the wood running radially. At the inner ends of these sections where swelling or expansion of the wood is slightest the sections may be placed clos together,

but at their wider or outer ends where the expansion-is greatest they should be separated to a greater degree, consequently the seams between them are made to widen gradually toward the perimeter of the drum.

The seams may be constructed as in Fig. i

so thateach section has a flange 15 over-lapp ng a slnnlar flange on proximate sections; or opposed faces of the sections may have grooves 16 as in Fig. '5 to receive a strip 17,

holding the sections against relative lateral movement.

In order that the inner ends of the sections '14 may more snugly fit together they are not brought to a point, but are cut or arranged to provide an opening to receive an abutment which in one instance is a boss 18 integral with and extending inwardly from the disk 9, the sections being held between thegudgeon plate 9 and a plate 20 secured by the bolts 13. When the head forms a partition B a ring abutment 21. is arranged at the inner ends of the section 14 and brass roeevso chine at this point. The heads A and B are so formed that the staves may be forced into firm engagement therewith when the drum or cylinder is built, and no allowance is required to be made for the swelling or expansion of the timbers forming the heads. It is thus possible to provide in every instance a perfect cylinder, and the possibility of the racking of the latter is reduced to a mini- -While the invention herein described is more particularly adapted for use with washing machines, it will be apparent that it'is also capable of use in connection with other v machines where similar defects are to be overcome.

I claim as my invention:

A cylinder head comprising a plurality of cuneal Wooden sections having the grain extending radially of the head, each of said sections having its edges provided with overlapping portions eXtending over a portion of the adjacent section and terminating a slight distance from the adjacent edge thereof, of a gudgeon having an integral plate formed of radial projections adapted to engage with the. aforementioned cuneal sections', the latter having radially arranged recesses to receive said rojections.

DANI L COOPER.

Witnesses: v v

A. L. MELENBACKER, R. G, STALLKNIGI-IT. 

